That Time

One day when I entered my sister's room, I hurriedly took off her top, but this time she stopped me. She said in surprise, "My period hasn't ended yet, no." I disappointedly fixed her top that I had just pulled. MC knew from the first 2 days that sister was uncomfortable, so I said, "If sister doesn't feel pain today, can you help me?" She hesitated for a while and nodded. I quickly took off my pants and sat on the edge of her bed. She knelt between my legs with great understanding. After just a few touches on G8 it stood up angrily. Unable to bear it, while she opened her mouth to eat the meat stick, I reached into her collar with one hand to caress sister's beautiful breasts. The more I played... sister seemed even more unbearable, strongly blocking my hand and said: "Don't touch me anymore, although it doesn't hurt, but the next few days are days when my sexual desire is strong. If you stimulate me more... I'm afraid I really can't stand it!" I suddenly realized the implication and asked: "If you really want it, then... let's do it!" Sister blushed and said: "But there's blood there, aren't you afraid? And our relationship... we can't do that... um... ah... how to say it!" Actually, I haven't seen the scene of a woman's period coming, nor have I had sex during menstruation experience, but thinking my brain is so big, if there's really something shocking, my brain should automatically omit it. I said with a newborn calf's appearance: "I've seen blood before, I won't mind. Besides... no matter what our relationship is, just treat me as your 'living massage stick', always remember pure pleasure without messing up, I really guarantee it won't affect our original relationship and affection." I repeatedly patted my chest to guarantee, and sister finally let down her guard.